Visual Testing Level 1 & 2 Vaal – Special

What is Visual Testing?

Visual Testing (VT), also known as Visual Inspection, is the oldest and most widely used non-destructive testing (NDT) method. It involves direct or indirect observation of a component’s surface using the human eye (aided or unaided) or optical instruments to detect surface discontinuities, defects, corrosion, misalignment or weld imperfections without damaging the part.

How It Works:

• Illumination
• Access & Preparation
• Observation
• Evaluation

Applications:

• Pre-weld & In-process: Fit-up, root pass, interpass cleaning.
• Post-weld: Final weld appearance, cap profile.
• In-service: Corrosion under insulation (CUI), erosion, fatigue cracks.
• General: Assembly checks, surface finish, coating integrity.
• Industries: Oil & gas, power, aerospace, construction, marine.

Advantages:

• Fast, low-cost, no equipment needed for basic VT.